HI - Over the past 2 or 3 days, I've been getting repeated warnings as follows: Malwarebytes Anti-Malware Successfully blocked access to a potentially malicious website: 50.97.214.152 50.97.218.220 Type: outgoing The alerts are only occurring on some sites. I get them on eBay, Yahoo, C-Net and maybe a few others. Visits to most sites don't generate a warning. Of course, there is only one IP address with each warning. The two IP addresses above have appeared more than once and I believe there are some other IP addresses that have appeared but that I haven's recorded. The two above are registered to Blue Kai, Inc. which looks like a VERY nasty place. Here's a "whois" for one of the IP addresses. [Querying whois.arin.net] [Redirected to rwhois.softlayer.com:4321] [Querying rwhois.softlayer.com] [rwhois.softlayer.com] %rwhois V-1.5:003fff:00 rwhois.softlayer.com (by Network Solutions, Inc. V-1.5.9.5) network:Class-Name:network network:ID:NETBLK-SOFTLAYER.50.97.192.0/18 network:Auth-Area:50.97.192.0/18 network:Network-Name:SOFTLAYER-50.97.192.0 network:IP-Network:50.97.218.220/32 network:IP-Network-Block:50.97.218.220-50.97.218.220 network:Organization;I:Blue Kai, Inc. network:Street-Address:20883 Stevens Creek Blvd Suite 200 network:City:Cupertino network:State:CA network:Postal-Code:95014 network:Country-Code:US network:Tech-Contact;I:sysadmins@softlayer.com network:Abuse-Contact;I:tenersen@bluekai.com network:Admin-Contact;I:IPADM258-ARIN network:Created:2011-09-01 15:35:23 network:Updated:2012-10-09 17:47:11 network:Updated-By:ipadmin@softlayer.com Here's the weird part. Malwarebytes says my computer is clean. So do Avast, SpyBot, SUPERantispyware and Kaspersky TDDSKiller. How do I cure an infection I can't find short of formatting the HD? Any help will be much appreciated! Thanks, John